Index: src/test/it/com/xpn/xwiki/it/xmlrpc/XhtmlValidityTest.java
===================================================================
--- src/test/it/com/xpn/xwiki/it/xmlrpc/XhtmlValidityTest.java	(revision 5192)
+++ src/test/it/com/xpn/xwiki/it/xmlrpc/XhtmlValidityTest.java	(working copy)
@@ -19,10 +19,12 @@
  */
 package com.xpn.xwiki.it.xmlrpc;
 
+import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.OutputStreamWriter;
+import java.io.PrintStream;
 import java.io.PrintWriter;
 import java.io.StringReader;
 import java.util.ArrayList;
@@ -78,6 +80,10 @@
 
     private int errors = 0;
 
+    private PrintStream stdout = System.out;
+
+    private PrintStream stderr = System.err;
+
     public XhtmlValidityTest(String fullPageName)
     {
         super("testValidityOfDocument");
@@ -138,6 +144,13 @@
         // TODO Until we find a way to incrementally display the result of tests this stays
         System.out.println(getName());
 
+        // we redirect the stdout and the stderr in order to detect (server-side) error/warning
+        // messages like the ones generated by the velocity parser
+        ByteArrayOutputStream newOut = new ByteArrayOutputStream();
+        System.setOut(new PrintStream(newOut));
+        ByteArrayOutputStream newErr = new ByteArrayOutputStream();
+        System.setErr(new PrintStream(newErr));
+
         Page page = rpc.getPage(fullPageName);
         String renderedContent = rpc.renderContent(page);
         assertNotNull(renderedContent);
@@ -159,7 +172,22 @@
             }
             errors += assertCssValid(page.getUrl());
         }
+
+        System.setOut(stdout);
+        String output = newOut.toString();
+        System.out.print(output);
+
+        System.setErr(stderr);
+        String errput = newErr.toString();
+        System.err.print(errput);
+
         assertTrue(errors == 0);
+        // detect server-side error/warning messages from the stdout
+        assertTrue(output.indexOf("ERROR") < 0);
+        assertTrue(output.indexOf("WARNING") < 0);
+        // detect server-side error/warning messages from the stderr
+        assertTrue(errput.indexOf("ERROR") < 0);
+        assertTrue(errput.indexOf("WARNING") < 0);
     }
 
     private static List readXarContents(String fileName) throws Exception